Hello I need help with these PHP pragramming questions.

1. Line comments can be added in PHP by adding at the front of the comment line 1I pipe pipe \ back slash back slash .. period period // forward slash forward slash 2. Which of the below options is a valid variable name? SmyNewVariable 1LastTry allTheseVaraibles $1LoveVariables 3. Which of the following has the correct syntax to declare variable and assign a value? $myNum- 1; myNum = 1; $myNum #1 SmyNum -1; 4. The logical And (&&) operator returns TRUE if the left operand is TRUE the right operand is FALSE and the left operand is TRUE the right operand is TRUE the right operand is TRUE and the left operand is TRUE